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钢框架塑性设计具有内力分析简单、耗钢量少、构造简单、安装速度快和投资少等优点。国外,在低层框架设计中,早已推广采用,其中以山形门式刚架结构应用最多。据不完全统计,日本近年来建造的钢结构房屋中,用塑性设计的山形门式刚架结构占总面积的40％。国内,在六十年代对轻型钢结构的塑性设计进行过理论分析和试验研究,并取得了一定的实践经验。有关塑性设计的规定,首次列入了即将颁布的我国家标准《钢结构设计规范》修订本中。目前,国内外有关塑性设计的规范中,大多明确规定,作用于结构的荷载,必须主要是静载。为了进一步研究塑性设计中存在的问题,以利推广采用。我部第二设计研究院于1983年在上海锅炉厂重型容器车间热处理炉子间工程中,按照简单
The plastic design of the steel frame has the advantages of simple internal force analysis, less steel consumption, simple structure, quick installation and low investment. In foreign countries, in the design of low-level frames, it has long been popularized, of which the most used is the gable-frame rigid frame structure. According to incomplete statistics, in Japan, steel-framed buildings constructed in recent years use plastic-designed gantry-style rigid frame structures that account for 40% of the total area. Domestically, theoretical analysis and experimental research on the plastic design of lightweight steel structures were carried out in the 1960s, and certain practical experiences were obtained. As for the plastic design regulations, it was listed for the first time in the revised version of our National Standard “Steel Structure Design Specification” to be issued soon. At present, most of the specifications for plastic design at home and abroad clearly state that the load acting on the structure must be mainly static. In order to further study the problems in the plastic design, to facilitate the promotion of adoption. The second design and research institute of our ministry was simplified in 1983 in the heat treatment furnace between heavy-duty container workshops of Shanghai Boiler Works.